Listening to English music, watching English movies, joining English courses, and practicing English in daily activities are four effective ways to master the English language according to the document. The document discusses how each of these methods can improve English abilities through repeated exposure and practice. It also notes that subtitles can help comprehension when watching movies, while dictionaries can help with unknown words from music or movies. In conclusion, the document emphasizes that English proficiency is important today and these four approaches can help anyone learn and improve their skills in the language.